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121XXX1X1X121XM0
12XXXX1X2X122XM0
112XXX1XXX121XM0
X11XXX1X1X121XM0
X21XXX1X1X122XM0
X1XXXX1XXX122XM0
X2XXXX1XXX121XM0
X12XXX1X2X122XM0
X22XXX1X2X121XM0
221XXX1XXX122XM0
211XXX1X2X121XM0
21XXXX1X1X121XM0
21XXXX1X2X121XM0
222XXX1X1X122XM0
222XXX1XXX122XM0
